Developing-camera.



S. D. HAJJAR.

DEVELOPING CAMERA. I APPLICATION FILED MAY 3, i909.

Patented July 9,1912.

3 SHEETS-SHEET l. g

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.4 ITORNEK S. D. HAJJAR.

DEVELOPING CAMERA. APPLIOATIOH FILED MAY 8, 1909.

3 BHEETSSHBET 2.

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l4 TTORNEY.

Patented July 9,1912.

s. 1). HAJJAR.-

DEVELOPING CAMERA.

APPLICATION FILED MAY}, 1909.

1,031,786. Paten ted-July 9, 1912. 3 SHEETS-SHEET 3.

L J4 K ,W/TNESSES:

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Q4 TTORNEY.

UNITED 'sTATEsfra EN OFFICE.

7.SOL0MON 1). HAJJ'AR, OF'LAWRZENCE, MASSACH UsE'ifrS;

DEVELOPING-CAMERA.

. duction' of a camera in which the negative glass door.

' will call the positive bellows.

can be readily developed, and in which,

made-and this-print developed.

The. main principle of myinvention is the useof a double camera with alens at the center. The negative is taken in substantially the usualway, while the other end of the double camera is'open. -The negative isthen developed in the camera by dropping it successively into suitablebaths and by then raising it to its original position. The other end ofthe double camerais now closed, the negative end is opened, and thefocusfor the image of the wet negative is obtained upon a suitable Afterthis is done, the glass door is opened, a sensitivesheet is placed inposition, the shutter is snapped or opened and the print is taken fromthe negative through the lens on this sheet. This sheet is thendeveloped in the camera by dropping it successively into suitable baths.

In the drawings, Figure 1, is a side view of the camera with thenegative focusing door closed and the positive end open. Fig. 2 is a topview witlr'the negative and positive focusing doors open and the sheetholder closed. Fig. 3 is a detail of the negative or plate end fromthe-back. Fig. 4-is a section of part of Fig. 3 on line X-Y. Fig. 5 is adetail of the focusing frame and door. Fig. 6 is a detail of thebathplate carrier and negative developing tank. Fig. is a section of thesensitive sheet magazine, the sheets being exaggerated to show theconstruction. Fig. 8 is a perspective View of the sheet'tongs. j

A. 'san ordinary collapsible camera bellows which I will call thenegative bellows. B is a similar collapsible bellows, which I These arejoined'at the lens C, which is carried by the slide I) of the usualconstruction. Lens G is provided with a shutter of the usualconstruction operated-by bulb'P.

Specification of Letters Patent. I

get the focus. The purpose of my invention is the pro- 1 Patented July9, 1912.

Application filed May 8, i909. Serial No. 494,802.

E a tripod .of the usualiconstruction which supports the base frame-F,which is similar to the usual construction, but of double the usuallength. FrameF however" is groovedat 70 to receive sliding frame-71-which-carries box 50 to be described. Preferably an adjusting orfocusing stud 72 is used to move, slide D back and forth to At the largeend ofnegative bellows A, is

I the box-20, which is closed at the back by 3 a hinged opaque focusingdoor 21, in which without drying the'negative, a print can be is asuitable square opening. In this open- I ing is a slidablefocusing frame22, which carries in its front part a piece of ground glass 23 uponwhich thefocus forthe-negatwo is made. This'frame 22 is preferably 3provided with a rim 24-which limits its outward movement. It can befocused at a point directly under 'where the negative plate is to be. j

G is a negative plate magazine, and is substantially an inverted boxwith transverse partitions ea'ehof which holds a sensi tive dry negativeplate K. The slide '30 protects the plates from the light, and when boxG is in place on slide support 31 where- 5 on it can slide in suitableWays 48, one plate 5 at a time can be dropped through slot 32 1n support3l-into position inside of box 20 back as shown by the dotted lines inFig.

i t until the last space which contains a plate K is over slot 32, withslide 30 closed, and

by then withdrawing slide 30 the distance cfone space. This canbeaccurately done by adjusting stud 37 and scale 38. When a dry plateisso dropped, it lands in 'a channel which is preferably made between thinstrips-of metal 33, 33 and it is caught and held therein by a latch 34.The latch plate held therein may be released. By

moving negative plate magazine G forward, another plate can be droppedafter the first one is disposed of and so on until magazine G isexhausted.

Focusing frame 22 is grooved or cutaway at 25 just enough to allow glass23 to pro-- ject' inside of strips 33, 33 to exactly the without beingexposed at any time to the.-

light. This is done by moving magazine G 50 the plate dropped therein.

'ment contains the fixing bath. It is thus .While a sensitive negative.plate is held at.

the focus will be exactly the same.

plane occupied by the inner face of the negativeplate K when inposition, so that Frame 22 is also provided at its outer end with anopaque light slide 26 which can be slid out when it is desired to lookthrough glass 23 to get the focus, and slid in to keep out the light. v

The first process is to swingback both positive door 51 and sheet holder52. The focus for the negative is then secured on glass 23 with door 21closed and slide 26 open. This is done by moving slide D and lens C backand forth until the focus is correct. Slide 26 is now closed andfocusing frame 22 is slid back as far as permitted by rim 24. A negativeplate K is now dropped into place as described above.

the proper focus and in place by the latch 34, the bulb P, or otherdevice for opening the shutter, is pressed and the picture is impressedupon the negative plate K.

The developing tank H slides transversely under box 20 in suitablegrooves 110 therein and under a slot therein which is" directly belowlatch'24 and slot 32. As soon as a negative plate is exposed, latch '34is swung out of the way and the negative plate drops into compartment 40of tank H which contains the developing fluid or solution. In thiscompartment 40 is a plate carrier 41 which is substantially a sheetmetal box which fits loosely into compartment 40 and is of a size toreceive a negative plate as it drops. This plate carrier 41 is providedclose to its bottom with a sufiicient number of holes 42 to admit thedeveloping fluid freely. The walls of plate holder 41 preferably taperin toward the bottom and at a distance therefrom is a flap 43 which mayor may not have holes 44. If it has such holes, they must be out of linewith negative plate passing throu holes 42, whereby light is excludedbut the developing fluid is not. After a negative plate is dropped, thesliding tank H is slid to the right, or left and slide cover 45 is slidover the top of plate carrier 41 which is then removed and held overanother com-' partment 46. Here the cover is slid off and Thiscompartdevelopedandfixed and is now taken out. Shde 30 is pushed in andmagazine G is placed in position through slot-32 in box .20 on latch 34and the focusing door 21 is' opened to allow lent of 1i ht to assthrough the plate y g It is evident, that the light through the the lensC, will form a picture somew ere inside of positive box 50. I obtainthis focus on the positive focusing door 51 which is substantially "apiece of ground glass in a frame, by moving slide D back and forth untilthe image is perfect. If a large picture is desired, positive box 50 maybe slid out to the desired distance as it is attached to sliding frame71. \Vhen the focus is obtained, I swing out positive door 51 and swingin sheet holder 52 which is so hung that it will strike the same pointof focus as door 51. This sheet holder 52 comprises ahinged box open atthe front. Inside is a board 53 which can be pushed in or out by handle54 which projects through the front. I prefer to use in this box, a padmade up as follows. On the to is a protecting nonsensitive sheet 60follbwed by a sensitive sheet 61 then a protecting sheet 60 and asensitive sheet 61, etc. The protecting sheets extend above thesensitive sheets and are preferably bent over, somewhat as shown.

Box 50 and sheet holder 52 are cut away somewhat at the top as shown inFig. 2 at 56, so that the top of sheets 60, 61 can be reached. Box 50 isalso cut away at the bottom at 58. Pins 57 project from the sides ofholder 52, and limit the movement of the sheets and stop the front oneat exactly the same focus as the glass of door 51 when in place.

It is better to manipulate the negative and the print under cover of theusual head cloth.

Sheet holder 52 isswung into place with a protecting sheet 60 in front.This is pulled out through slot 56 by the fingers as can be readily doneon account of the fold at the top. This leaves sensitive sheet 61 inplace against the pins 57 at the proper focus. Bulb P is now pressed andthe print is taken from the negative, on the sheet 61.

Underneath box 50 I provide a tank L which I will call the positive tankand which is divided into three compartments 80, 81, 8 2 which containrespectively the developing fluid, the fixing fluid and plain water. Theconstruction of tank Lis substantially the same as tank H except that ithas three compartments instead of two and I use no plate holder 41 withit.- It has a rim at the top which fits in to suitable transversegrooves in ways under box 50. Tank L can be slidto the right or left tobring either compartment underneath slot 56. After the picture isimpressed on a sheet 61, the tank L is moved so that the developing bathis directly underneath slot 56, when the sheet which has been exposedblacks and spring shanks 91 by which they can be manipulated from thetop. They are provided with a molding 92 which stops a sensitive sheetat the right point.

One blade is forced down behind sensitive* sheet 61 and the other bladein front thereof until the top of the sheet comes in contact withmolding 92. The tongs are squeezed together and as they continue to bepushed down, they carry the sheet along with them into compartment 80 oftank L which contains the developing fluid. The tongs are slowly openedup to allow the fluid to reach the sheet and after remaining asufficient time there the tongs and sheet are withdrawn. Tank L is movedover until the fixing bath in compartment 81 is in position and sheetholder 52 can now be swung back for more convenient handling. Tongs andsheet are introduced into the fixing bath for asufiicient time and arethen withdrawn.-

Tank L is again moved over and tongs and sheet are introduced into thecompartment 82 in which is the washing bath, which finishes the process.

The principal feature of my invention is the use of the double actioncamera provided at one end with means for exposing the negative, anegative plate holder capable of holding a dry or a wet plate and anegative developing bath, and at theiother end provided with a positivesheet holder and the positive developing bath. The exact construction ofthe baths and the means of introducing and withdrawing the plates andsheets therefrom maybe varied without departing from the principleof myinvention. My invention covers a complete photographic and developingoutfit which can be used on the street, in parks and in other openplaces Where a dark cabinet or dark room is not available and where theeconomy of space is important.

What I claim as my invention and desire to cover with Letters Patent isg 1. In a developing camera, a stand, a lens and shutter slidablysupported thereon, a collapsible negative bellows extended on one sideof the lens, a negative box on the end of the bellows opposite the lensand in operative position with said lens, a positive bellows on theother side of said lens, and a positive box on the other end of thepositive bellows from and inoperative position with said lens, combinedwith a. holder in the negative box and a focusing door vfor the negativeplates, a tank provided with compartments and attached to the negativebox, a positive sheet holder in the positive box, and a focusing doorattached to the positive box, together with a developing tank dividedinto compartments and attached to said positive box.

2; In a developing camera, a stand, and a lens and shutter slidablysupported thereon, combined with a collapsible negative bellows and anegative box at the end thereof 0ppo-- site the lens, a focusing doorfor the negative bellows, and a developing tank provided withcompartments and attached to; the negative box, together with acollapsiblepositive bellows extending from said lens oppositely-from thenegative bellows and a box at the end thereof opposite the lens, apositive sheet holder and a focusing door for said second named box, anda developing tank provided with compartments and attached to thepositivebox.

3. In a developing camera, a stand, a lens and shutter slidablysupported thereon, a collapsible negative bellows which extends from oneside of the lens, a box at the end thereof, a negative platemagazinesupported by said box, a-glass focusing door carried by thenegative box, a latch for holding a negative plate inposition in saidbox, anda developing tank divided into compartments and slidableunderneath the ncgativejzbox, combined with a positive bellows and apositive box on the other side of the lens, a sheet magazine hinged tosaid positive box, and a glass focusing door hinged to the positive ox.I

4:. In a developing camera, a stand, a lens and shutter slidablysupported thereon, a collapsible negative bellows which extends from oneside of the lens, a negative plate holder at the end of said bellowsopposite the lens and adapted for holding a dry or a wet negative plate,a focusing door for the negative plate hingedto said negative plateholder, a developing tank provided with compartments and slidablymounted under the negative plate holder, means in the negative plateholder for supporting a negative plate but said supporting meansbeingadapted to be moved to permitthe plate to drop into said tank, andremovable means for holding the plate and fitting in saidtank, combinedwith a collapsible positive bellows extended on the other side of thelens, a sheet holder, a focusing door adapted to replace said sheetholder and a devel-. oping tank divided into compartments and slidablymounted under the said holder.

5. In a developing camera, an extensible stand, a lens and a shutterslidably supported thereon, a collapsible negative bellows which extendsfrom one side of the lens, a negative box at the end of the bellowsopposite the lens and formed with parallelslots at the top and bottomand channels connecting said slots, a plate magazine slidably mounted onthe top of said box and over the top slot therein, a latch in line withthe lower slot in said box, a focusing door at the back of said'box andhinged thereto, a

. slidable focusing frame therein, a developing tank provided withcompartments and slidable under the negative box and under the lowerslot therein, a plate carrier in said tank provided with a flap and with2O said box, a focusing frame slidable in said holesito admit thepassage of liquid but so arranged as not to admit the light, combinedwith a collapsible positive bellows on the other side of said lens, apositive box at the outer endv thereof, a focusing door hinged thereto,a sheet magazine hinged to said positive box, and a developing tankdivided into compartments and slidably mounted under said positive box.

6. In a developing camera,.an extensible stand, a lens and shutterslidably supported thereon, a collapsible negative bellows which extendsfrom one side of said lens, a negative box at the other end of the,negative bellows from and opposite said lens and provided inside withvertical channels for the negative plates and a slot over the Channelsand a bottom slot under the channels, a latch adapted to hold a negativeplate in said channels, a focusing door hinged; to

door, a light slide therefor, a negative plate magazine slidably mountedon top of the negative box and comprising a slide at its bottom,a-developing tank divided into compartments and slidable under thebottom slot in said box, and a plate carrier in one of said compartmentsand formed with holes and a flap, combined with a collapsible positivebellows extending on the other side of said lens, a positive box at theouter end thereof, a posit ve focusing door hingedat the back of saidpositive box, a sheet holder hinged to said positive box and havingcheck pins for the" positive sheets, a board for supporting the positivesheets slidable in said-sheet holder and having a handle which projectsthrough the back of said box, and a developing tank .divided intocompartments and slidably mounted under said positive box.

7. In a developing camera, a stand, a box at one end thereof formed withvertical channels and withlslots connecting the tops and bottomsrespectively thereof together with grooves parallel with the bottomslot, a collapsible bellows extended along. said stand from one side ofthe box, a lens and shutter at the other end of said bellows from saidbox and slidable on said stand,-

a latch in line with and above the lower slot in said box, an opaque.focusing door in which is an opening, said door being at the back ofsaid box and hinged thereto, a focus ing frameslidable in said openinand an opaque slide for said frame, combmed with a developingtankprovided with compartments and slidable in said grooves 'as described.

8. In a developing camera, a stand, a box I at one end thereof and cutaway at the top and bottom and formed with transverse grooves thereunderat the outer end, a collapsible bellows extended on the inner end andalong said stand, a lens and shutter slidable on said stand at the innerend of the bellows, combined with a focusing door at the back of saidbox and hinged to one edge thereof, a sheet holder at the back of saidbox and hinged to another edge thereof and having check pins, a boardslidable in said sheet holder and having a handle whichprojects'th'rough the back of said box, sensitive and nonsensitivesheets in said box, and a developing'tank. divided into compartments andslidably mounted under said box and in the transverse groovesthereunder.

9. In a developing camera, a lens and shutter, a collapsible bellowsextending on one side thereof, an opaque box at the other end of saidbellows from said lens, removable means attachedto said box for ascertaining a focus, means in said box for holding a dry or a wet negativeplate at said focus, closure means for excluding the light from saidbox, an opaque tank so attached to said without exposure to the light,an opaque developing tank attached to said latter box and adapted forholding said sheet during 7 development and without exposure to thelight.

10. In a developing camera, a lens and shutter, a negative bellows whichextends onone side ofthe lens, an opaque box at the end thereof, meansfor ascertaining a focus in said box, means for holding a nega-" tiveplate at said focus, and means attached to said box for holding thenegative plate during development and without exposure to the light,together with a positive bellows which extends on the other side of saidlens, an opaque box at the end thereof, together with means forascertaining a focus, means for holding a sensitive sheet at said focus,and means for holding said sensitive sheet during development andattached to the latter opaque box named and so arranged as to at timesexclude the light as described.

In testimony whereof I hereto afiix my signature in presence of twowitnesses.

SOLOMONVD. HAJJAR. Witnesses:

GARDNER W. PEARSON, HELEN V. FLEMING.-

